a. Precast-prestressed concrete bridge beams containing a calcium nitrite based corrosion inhibitor admixture (to be added to the concrete mix at a rate of 5.0 gallons/cy). b. Necessary bearing pads, anchor dowels, transverse tendons and hardware, compressive seals, and bridge rail anchorage inserts and hardware; all as specified on the attached drawing(s). All hardware shall be galvanized or electroplated. c. Design calculations prepared in accordance with the AASHTO Standard or LRFD Specifications for Highway Bridges (current editions). However, regardless of which design specifications are used, NYSDOT currently requires that the load ratings be submitted per the Standard Specifications. d. Working Drawings showing the following minimum information: i. Precast-prestressed concrete bridge beams, including all steel reinforcement and prestressing strands. ii. Anchor dowels. iii. Transverse tendons with required tensioning. iv. Shear keys. v. Railing anchorage system. vi. Bearing pads. vii. Initial and final concrete strengths. e. The contractor shall be responsible for fully threading the bridge rail anchorage hardware into the beam inserts before shipping. f. The contractor shall coat all surfaces of all beams with two (2) coats of a penetrating type protective sealer in accordance with the requirements of Section 6.2.3 of the NYSDOT Prestressed Concrete Construction Manual (PCCM). g. The contractor shall adhere self-adhesive rectangular compressible sealer to one bottom edge of each beam (less one) for the full length of each beam as well as for the full height of each end of each beam (less one) prior to delivery. The contractor shall also adhere self-adhesive compressible sealer to one side of each beam (less one) at each transverse tendon hole location prior to delivery. Seals shall be able to support the self-consolidating concrete poured into the shear keys.
